Robotic vacuum cleaner



FIG. 1 is a right perspective view of a robotic vacuum cleaner showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a top elevational view thereof.

In FIGS. 2, 3, 4 and 5 the broken lines showing drive wheels and rear support wheel are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a robotic vacuum cleaner, as shown and described. 